Search engines are responsible for indexing billions of web pages and determining the popularity and rank of these pages. This is done by analyzing the keywords that are included on each page. Each one of these keywords is assigned a special value, based on how many other websites use that keyword as part of their URLs. 

 When a search engine visitor comes across a web page, they try to find specific information relevant to what they are looking for. Because the web pages are usually structured logically, it is usually effortless to find relevant information about what you are looking for. 

The most crucial factor in the algorithms used to index web pages is relevancy. Relevancy is determined by analyzing the keywords and keyword phrases you choose to include in your URLs.

For you to have a successful website, it is vital to understand how search engines work. Understanding the basic workings of search engine optimization and how they impact your website is essential to your success. 

Businesses need to make sure that their keywords are relevant to the subject matter on their webpage. It is also essential to ensure the page is user friendly and all keywords are included in your metadata and title tags.

 A Guide To How Search Engines Work

Although Search engines may look simple from the outside, they require a lot of computational heavy lifting backstage to provide you with a list of relevant pages when you type a keyword in the search page.

Search engines work continuously to gather information from numerous websites across the world and systematically organize that information so that the required info can be easy to find. 

Search engines basically work on a three-step process that includes crawling web pages, indexing them, and ranking them with search algorithms.

The following is the basic three-step process of how a search engine works:


Search engines first start by sending crawling robots directly to websites. These robots are sent out periodically, usually once per day, and crawl through indexing pages to search for new indexing pages and new web pages to index. This is called crawling. 

After the initial crawling phase, search engines then use a variety of ranking algorithms to determine where pages should be ranked based on their relevance to search queries.

The crawlers, which are a part of the search engines, crawl the internet pages and search for new versions of the topics that have been indexed and found relevant. There are different kinds of crawlers. The most popular are the Googlebot, the Yahoo! Bot, the Ask Bot, and the Redirect Bot.


Search engines serve content and index it based on keywords/keywords and other criteria set by their owners. When someone types in a subject, location, and time, the search engine returns search results that are primarily based on those things. 

The result is a list of sites that have something that you are looking for. If your search requires more than a few pages of text, then the result is a list of sites that have something related to what you are looking for. The result is called an index.

These search engines follow specific procedures in order to index the web pages and appropriately index them. For instance, the Googlebot uses a set of algorithms to decide how to classify the links between web pages. Then it uses these algorithms to determine the relevance of the page in terms of generating sales and backlinks for that specific website. 

On the other hand, these algorithms also consider the amount of time that the spiders took to go through the website in order to decide its relevance. The Yahoo! Bot uses the same set of algorithms to determine the relevance of any given web page.


In the final step, the search engines sort through indexed information and return the right results for each query with the help of search algorithms. They typically analyze what a searcher is looking for and which results are perfectly suitable to answer the query.

Algorithms use various factors to define the quality of the pages in their index. Many of these factors help analyze the popularity of specific content and the qualitative experience users have when they land on the page.

Some of the factors used by search algorithms include:

  • Engagement 
  • The status and time of when the content was updated 
  • Page speed 
  • Backlink quality 
  • Mobile-friendliness

The search engines aim to present users with the most relevant, usable results. This is why most search engines’ ranking factors are the same factors used by human searchers. Therefore, the search algorithms judge the content by various factors page speed, freshness, and links to other helpful content.

Therefore, when designing websites, businesses need to optimize readability, page speed, and keyword density in order to send positive ranking signals to search engines. In addition, they should also Work constantly on improving engagement metrics such as time-on-page and bounce rate, which helps boost rankings.


It is essential for businesses to understand how a search engine works because this understanding makes it easier for them to create crawlable and indexable websites. 

Sending the right signals to search engines is essential to ensure your pages appear in search engine results pages that are relevant to your business. However, serving these algorithms with appropriate content is a crucial step along the path to a successful online business.